CN213039615U

CN213039615U - Screw with quick disassembly structure

Info

Publication number: CN213039615U
Application number: CN202021621218.6U
Authority: CN
Inventors: 费通程
Original assignee: Tianjin Gunaisi Standard Parts Co ltd
Current assignee: Tianjin Gunaisi Standard Parts Co ltd
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2021-04-23
Anticipated expiration: 2030-08-06

Abstract

The utility model relates to a fastener technical field just discloses a screw with dismantle structure fast, the lead screw comprises a screw rod, the left side fixedly connected with nut of screw rod, the left center department of nut outer wall has seted up and has accomodate the groove, and accomodate the inside that the groove runs through the nut and extend to the inside left end of screw rod, it articulates the gag lever post to accomodate the front end on inslot wall right side, accomodate the middle fixedly connected with pressure spring of department on inslot wall right side. The utility model discloses be convenient for when the bicycle breaks down and does not have extracting tool by oneself, press down the pull rod downwards and make the gag lever post remove the locking state, make the pull rod extend under the spring action of pressure spring, the bracing piece pops out in the draw-in groove under the effect of torsional spring, provide the strong point of wrench movement screw, convenient quick dismantlement can ensure bracing piece used repeatedly many times, and retrieve the inslot portion back at the shrink, the inseparable joint of sealing rubber ring is in the seal groove, play dustproof waterproof and anticorrosive effect, increase of service life.

Description

Screw with quick disassembly structure

Technical Field

The utility model relates to a fastener technical field especially relates to a screw with dismantle structure fast.

Background

The screw is one of the most common fasteners in work and life of people, and is popular with people due to simple structure and low manufacturing cost, and people prefer the screw as the fastener in many positions needing to be fastened; the general screw comprises screw rod and nut, is provided with the external screw thread on the screw rod, and the nut is the regular hexagon body generally, makes things convenient for people to tighten or loosen the screw with spanner or other instrument.

In prior art, the fastening between each part of the bicycle of the overwhelming majority all uses the screw of various sizes and the difference of kind, the dismantlement of the screw of the overwhelming majority of current all needs to use extracting tool, ordinary people's bicycle is on the road or when other places break down, the regulation is hardly overhauld to the bicycle to the instrument that does not have the suitability by oneself, and the screw of some special local uses of bicycle, need to use special instrument can dismantle, the limitation is great, and the screw of convenient to detach leaves the auxiliary tank in advance on the nut a bit, be convenient for provide the strong point for general instrument, because of it directly exposes in external environment, very easily by the erosive wear.

SUMMERY OF THE UTILITY MODEL

The purpose of the utility model is to solve the shortcoming that exists among the prior art, if: the screw is difficult to disassemble when no maintenance tool is arranged beside the screw, special tools are needed for disassembling the screw at certain special places, the limitation is large, auxiliary grooves are reserved on the screw caps of the screws convenient to disassemble, and the screws are extremely easy to corrode and wear due to the fact that the auxiliary grooves are directly exposed in the external environment, so that the screw with the quick disassembling structure is provided.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a screw with a quick-disassembly structure comprises a screw rod, wherein a nut is fixedly connected to the left side of the screw rod, an accommodating groove is formed in the center of the left side of the outer wall of the nut, penetrates through the inside of the nut and extends to the left end of the inside of the screw rod, a limiting rod is hinged to the front end of the right side of the inner wall of the accommodating groove, a pressure spring is fixedly connected to the middle of the right side of the inner wall of the accommodating groove, one end of the pressure spring is fixedly connected with a limiting block, the surface of the front side of the limiting block is provided with a limiting groove, a flange at one end of the limiting rod is slidably sleeved in the limiting groove, a pull rod is fixedly connected to the left side of the outer wall of the limiting block, clamping grooves are formed in the left ends of the front side and the rear side of the outer wall of the pull rod, the outer wall activity of bracing piece is cup jointed in the inside of draw-in groove, the one end of pull rod runs through the inside of accomodating the groove and extends to its left, and the fixed cup joint in one end of pull rod has the sealing rubber ring, the seal groove has been seted up to the department in the middle of the left side of nut outer wall, the flange activity joint on sealing rubber ring right side is in the inside of seal groove.

Preferably, the two ends of the torsion spring are respectively and fixedly inserted into one end of the outer wall of the supporting shaft and the inner wall of the through groove at the left end of the supporting rod.

Preferably, the outer walls of the pressure spring and the limiting block are movably sleeved in the accommodating groove.

Preferably, the cross section of the accommodating groove is square, and the top and the bottom of the inner wall of the accommodating groove are in lap joint with the top and the bottom of the outer wall of the limiting block.

Preferably, the length of the supporting rod is 0.9 times of the maximum change length of the limiting groove, and the symmetry line of the two supporting rods is overlapped with the axis of the screw rod.

Preferably, the surface of the left end of the front side of the limiting block is in lap joint with the front side of the accommodating groove inner wall, and the gap distance between the surface of the right end of the front side of the limiting block and the front side of the accommodating groove inner wall is 1.1 times of the thickness of the limiting rod.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses a cooperation of pressure spring and gag lever post is used, is convenient for break down at the bicycle and when there is not extracting tool on one's side, presses down the pull rod and makes the gag lever post remove the locking state, makes the pull rod extend under the spring action of pressure spring, and the bracing piece pops out in the draw-in groove under the effect of torsional spring, provides the strong point of wrench movement screw, convenient quick dismantlement.

(2) The utility model discloses a accomodate groove and seal groove and sealing rubber ring's cooperation and use, can ensure bracing piece used repeatedly many times, and retrieve the inslot portion back at the shrink, the inseparable joint of sealing rubber ring plays dustproof waterproof and anticorrosive effect, increase of service life in the seal groove.

Drawings

FIG. 1 is a front sectional view of the structure of the present invention;

FIG. 2 is an enlarged view of portion A of the structure of FIG. 1;

fig. 3 is a rear sectional view of the structure of the present invention.

In the figure: 1. a screw; 2. a receiving groove; 3. a pressure spring; 4. a pull rod; 5. a nut; 6. a limiting rod; 7. a limiting block; 8. a limiting groove; 9. a sealing groove; 10. sealing the rubber ring; 11. a card slot; 12. a support bar; 13. a support shaft; 14. a torsion spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, a screw with a quick-dismantling structure, comprising a screw rod 1, a screw cap 5 fixedly connected to the left side of the screw rod 1, a containing groove 2 formed at the center of the left side of the outer wall of the screw cap 5, the cross section of the containing groove 2 being square, and the top and bottom of the inner wall of the containing groove 2 being in lap joint with the top and bottom of the outer wall of a stopper 7, so as to limit a pull rod 4 and the stopper 7 to be unable to rotate in the containing groove 2, and the containing groove 2 penetrating the inside of the screw cap 5 and extending to the left end of the inside of the screw rod 1, a stopper 6 hinged to the front end of the right side of the inner wall of the containing groove 2, a compression spring 3 fixedly connected to the middle of the right side of the inner wall of the containing groove 2, the whole of the compression spring 3 and the stopper 7 being movably sleeved inside the containing groove 2, a stopper 7 fixedly connected to one end of, and the distance between the surface of the right end of the front side of the limiting block 7 and the front side of the inner wall of the accommodating groove 2 is 1.1 times of the thickness of the limiting rod 6, enough space is reserved for facilitating the movement of the limiting rod 6, thereby avoiding the problem of jamming, the surface of the front side of the limiting block 7 is provided with a limiting groove 8, the flange at one end of the limiting rod 6 is sleeved in the limiting groove 8 in a sliding manner, the left side of the outer wall of the limiting block 7 is fixedly connected with a pull rod 4, the left ends of the front and back sides of the outer wall of the pull rod 4 are provided with clamping grooves 11, the left end inside the clamping groove 11 is fixedly connected with a supporting shaft 13, the outer wall of the supporting shaft 13 is movably sleeved with a torsion spring 14, the two ends of the torsion spring 14 are respectively and fixedly inserted on one end of the outer wall of the supporting shaft 13 and the inner wall of the through groove at the left end of the supporting rod 12, the outer, after the two support rods 12 are conveniently stretched, the stress can be uniform when a user twists the screw, the labor intensity is reduced, the outer walls of the support rods 12 are movably sleeved in the clamping grooves 11, one end of the pull rod 4 penetrates through the inside of the accommodating groove 2 and extends to the left side of the accommodating groove, one end of the pull rod 4 is fixedly sleeved with the sealing rubber ring 10, the middle part of the left side of the outer wall of the nut 5 is provided with the sealing groove 9, the flange on the right side of the sealing rubber ring 10 is movably clamped in the sealing groove 9, the compression spring 3 and the limiting rod 6 are matched for use, when the bicycle breaks down and has no disassembling tool on the body side, the pull rod 4 is pressed downwards to release the locking state of the limiting rod 6, the pull rod 4 is stretched under the elastic force of the compression spring 3, the support rods 12 are popped out from the clamping grooves 11 under the action of the torsion spring 14 to provide support points for twisting the screw, the screw is convenient and quick disassembly, can ensure 12 used repeatedly many times of bracing piece, and retrieve the inside back of receiving groove 2 at the shrink, the inseparable joint of sealing rubber ring 10 plays dustproof waterproof and anticorrosive effect in seal groove 9, increase of service life.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Claims

1. The screw with the quick disassembly structure comprises a screw rod (1) and is characterized in that a nut (5) is fixedly connected to the left side of the screw rod (1), a containing groove (2) is formed in the left center of the outer wall of the nut (5), the containing groove (2) penetrates through the inside of the nut (5) and extends to the left end of the inside of the screw rod (1), a limiting rod (6) is hinged to the front end of the right side of the inner wall of the containing groove (2), a pressure spring (3) is fixedly connected to the middle of the right side of the inner wall of the containing groove (2), a limiting block (7) is fixedly connected to one end of the pressure spring (3), a limiting groove (8) is formed in the surface of the front side of the limiting block (7), a flange at one end of the limiting rod (6) is sleeved in the inside of the limiting groove (8) in a sliding mode, a pull rod (4), draw-in groove (11) have all been seted up to the left end of both sides around pull rod (4) outer wall, the left end fixedly connected with back shaft (13) of draw-in groove (11) inside, torsional spring (14) have been cup jointed in the outer wall activity of back shaft (13), bracing piece (12) have been cup jointed in the surface activity of torsional spring (14), the inside at draw-in groove (11) is cup jointed in the outer wall activity of bracing piece (12), the one end of pull rod (4) runs through the inside of accomodating groove (2) and extends to its left, and the fixed cover of one end of pull rod (4) has been cup jointed sealing rubber ring (10), seal groove (9) have been seted up to the left middle department of nut (5) outer wall, the movable joint on sealing rubber ring (10) right side is in the inside of.

2. The screw with the quick-disassembling structure according to claim 1, wherein both ends of the torsion spring (14) are respectively fixedly inserted into one end of the outer wall of the supporting shaft (13) and the inner wall of the through groove at the left end of the supporting rod (12).

3. The screw with the quick-disassembling structure according to claim 1, characterized in that the outer walls of the compressed spring (3) and the limiting block (7) are movably sleeved inside the accommodating groove (2).

4. The screw with the quick-disassembling structure according to claim 1, wherein the cross section of the receiving groove (2) is square, and the top and the bottom of the inner wall of the receiving groove (2) are overlapped with the top and the bottom of the outer wall of the stopper (7).

5. The screw with the quick-dismantling structure as claimed in claim 1, wherein the length of the support rods (12) is 0.9 times the maximum variation length of the limiting groove (8), and the symmetry line of the two support rods (12) coincides with the axis of the screw (1).

6. The screw with the quick disassembly structure as claimed in claim 1, wherein the surface of the left end of the front side of the limiting block (7) is overlapped with the front side of the inner wall of the accommodating groove (2), and the gap distance between the surface of the right end of the front side of the limiting block (7) and the front side of the inner wall of the accommodating groove (2) is 1.1 times of the thickness of the limiting rod (6).